CN101021672A - Waterproof, moistureproof and dustproof full closed panoramic vision sensor - Google Patents
Waterproof, moistureproof and dustproof full closed panoramic vision sensor Download PDFInfo
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- CN101021672A CN101021672A CN200710071835.6A CN200710071835A CN101021672A CN 101021672 A CN101021672 A CN 101021672A CN 200710071835 A CN200710071835 A CN 200710071835A CN 101021672 A CN101021672 A CN 101021672A
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- waterproof
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Abstract
The invention provides a waterproof, dampproof, dustproof, full-closed, panoramic visual sensor, comprising: base, tube body, top disk, reflector, bracket, camera and heating resistance wire, where the base is used as basic fixed platform, the bracket and the heating resistance wire are fixed on the base; the base and the top disk are interconnected through the tube body; the camera is installed on the bracket; the reflector is arranged on the top disk. And it has advantages of small bulk, lightweight, compact structure, able to operate at low temperature and high humidity, and in other adverse environments, and it is a full-closed, novel, panoramic visual sensor.
Description
(1) technical field
The present invention relates to sensor field, be specifically related to the Waterproof, moistureproof and dustproof technical field of sensor.
(2) background technology
Less different with traditional visual environment sensory perceptual system visual field, panoramic imagery refers to the sphere imaging greater than hemisphere visual field (360 ° * 180 °), overall view visual system utilizes the single view hyperboloidal mirror Polaroid greater than hemisphere visual field (360 ° * 180 °) by the CCD image-generating unit, once obtain the target information of whole scene, be no longer necessary for the additional cover servomechanism of photoelectric follow-up.
The video camera of panoramic vision sensor all has the temperature range of a job, and the working temperature of general video camera is subzero ten to spend to 70 degrees centigrade.And in the north winter outdoor temperature reach subzero about 30 degrees centigrade, video camera is with regard to cisco unity malfunction, this has just limited the outdoor application of panoramic vision sensor, and camera lens and single view hyperboloidal mirror the phenomenon that hazes can occur in the bigger environment of humidity; Panoramic vision comprises precision optics simultaneously, and as catoptron, camera lens is subjected to contamination by dust easily and influences system imaging.
(3) summary of the invention
The object of the present invention is to provide that a kind of volume is little, in light weight, compact conformation, and can be operated in the whole-closed water-proof moisture-proof dustproof full closed panoramic vision sensor in the rugged environments such as low temperature, high humility.
The object of the present invention is achieved like this: it by base, cylindrical shell, take over a business, catoptron, support, video camera and resistive heater form, support and resistive heater are fixed on the base; Base with take over a business by cylindrical shell to link into an integrated entity; Video camera is rack-mount; On catoptron is arranged on.
The present invention also has some architectural features like this:
1, describedly takes over a business to be provided with little ring, take over a business little ring and be provided with the internal recess and the outer grooves that is connected cylindrical shell that catoptron is installed;
2, described catoptron is a hyperboloidal mirror, and minute surface is coated with reflectance coating;
3, described support is made of two the same submounts, is provided with groove and bar hole in the middle of each submounts;
4, be provided with the fixedly pilot hole of resistive heater of 4 support bracket fastened heavy through holes and two in the middle of the described base, the surface is provided with the annular chassis groove of fixed cylinder, and the bottom is provided with air intake valve and the valve of giving vent to anger, and sidepiece is equipped with the aviation plug-in unit;
5, described cylindrical shell is the glass cylindrical shell of column type.
The present invention has adopted the refractive and reflective panorama view sensor, overcome the shortcoming that traditional vision system obtains panoramic picture, and adopted totally enclosed technical scheme to solve the water funk fearness tide of panoramic vision sensor and be afraid of that the video camera of dirt and panoramic vision sensor partly is subjected to low temperature limitation and the problem of cisco unity malfunction.
Hyperboloidal mirror of the present invention is processed by glass material, and minute surface satisfies the hyperboloid equation, and minute surface plating reflectance coating strengthens reflectivity, the bottom of hyperboloidal mirror by glue with take over a business to be connected; Cylindrical shell is that glass material constitutes, the top of cylindrical shell by glue with take over a business to link to each other, the bottom of cylindrical shell links to each other with glue with base; Take over a business, support and base all adopt aluminum; Base sidepiece dress aviation plug-in unit, there is air intake valve the base bottom and the valve of giving vent to anger, total is sealed, this enclosed panoramic vision sensor is charged into nitrogen, select for use impermeability preferably the aviation plug-in unit can reach the effect of this invention full closed panoramic vision sensor Waterproof, moistureproof and dustproof, and can determine whether that heating improves temperature to guarantee the working temperature of video camera to resistance wire according to full closed panoramic vision sensor temperature inside situation; The axis of the axis of described hyperboloidal mirror, the axis of cylindrical shell and video camera coincides, and the photocentre of camera lens and hyperboloidal mirror place bi-curved far feel terribly worried coincide.
Above-mentioned full closed panoramic vision sensor, wherein, described base side is equipped with the aviation plug-in unit, and the power lead of video camera, video signal cable and resistive heater power supply link to each other with resistive heater with the video camera of full closed panoramic vision sensor inside respectively by the aviation plug-in unit.
Above-mentioned full closed panoramic vision sensor, there is air intake valve wherein said base bottom and the valve of giving vent to anger, the panoramic vision sensor inside of whole sealing charges into nitrogen, and can determine whether that heating improves the working temperature that temperature guarantees video camera to resistance wire according to full closed panoramic vision sensor temperature inside situation.
The present invention adopts totally-enclosed mode, and inner installation resistive heater improves the operating ambient temperature of video camera.Inner inflated with nitrogen can be avoided the phenomenon that hazes of camera lens and single view hyperboloidal mirror.This panoramic vision sensor can adopt image pick-up card to link to each other with computer, realizes that by software programming the collection of image and processing also can be applicable in the DSP embedded developping system.This panoramic vision sensor volume is little, in light weight, and compact conformation can be used for the robot overall view visual system, video conference, and bank, panoramas such as traffic are monitored in real time, and can be operated in the rugged environments such as low temperature, high humility.
(4) description of drawings
Fig. 1 is the optical system synoptic diagram of omnidirectional imaging system.
Fig. 2 is a structural representation of the present invention.
(5) embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments:
Embodiment:
Present embodiment comprises base, cylindrical shell, takes over a business, catoptron, support, video camera and resistive heater, and support and resistive heater are fixed on the base; Base with take over a business by cylindrical shell to link into an integrated entity; Video camera is rack-mount; On catoptron is arranged on.
In conjunction with Fig. 1-2, Fig. 1 is the optical system synoptic diagram of omnidirectional imaging system; Fig. 2 is a front elevation of the present invention.Among Fig. 1: F is the bi-curved perifocus in hyperboloidal mirror place; F is the bi-curved over focus in hyperboloidal mirror place.Extended line to the light of perifocus takes place to assemble at over focus after the reflection at the hyperboloidal mirror minute surface, and the photocentre of camera lens overlaps with over focus, thereby obtains distinct image.
Take over a business shape as shown in Figure 2, constitute by aluminum.Take over a business little ring 1a internal recess and play the effect that hyperboloidal mirror 2 is installed, take over a business the bottom that little ring 1a internal recess is slightly larger than hyperboloidal mirror 2, hyperboloidal mirror 2 can be bonded on 1 firmly with glue.Take over a business little ring 1a outer grooves and play the effect that connects cylindrical shell 4, glue together with glue.
Choosing video camera CCD image-generating unit pixel size is d
Ccd, lens focus is f, and these two indexs are preset parameter, and establishing corresponding image pixel is r
Pix, the hyperboloid focal length is 2e, knows that easily the catoptron rear end face is h>2e from camera lens centre of perspectivity distance, can roughly make catoptron rear end face radius r by formula (1)
Top=d
Top/ 2, for easy to process, can cut-off footpath d
TopBe integer.
Catoptron is a surface of revolution, can analyze in XOY plane, establishes Hyperbolic Equation to be:
The form that can abbreviation becomes parametric equation:
x=btant
t=(-t
0,t
0) (3)
y=asect
If a=kb, again
And to get the maximum field of view angle be α, as shown in Figure 1, knows that easily the P point coordinate is (r
Top, e+r
TopCot (π-α)) also be
Substitution formula (2) can get,
Have only a unknown number k in the following formula, can find the solution with Matlab is auxiliary.Remove a minus solution trivial, can solve k=k
0,
Substitution formula (4) can obtain Hyperbolic Equation.
Claims (6)
1, a kind of Waterproof, moistureproof and dustproof full closed panoramic vision sensor, it comprises base, cylindrical shell and takes over a business, and it is characterized in that it also comprises catoptron, support, video camera and resistive heater, support and resistive heater are fixed on the base; Base with take over a business by cylindrical shell to link into an integrated entity; Video camera is rack-mount; On catoptron is arranged on.
2, a kind of Waterproof, moistureproof and dustproof full closed panoramic vision sensor according to claim 1 is characterized in that the described little ring of taking over a business to be provided with, and takes over a business little ring and is provided with the internal recess and the outer grooves that is connected cylindrical shell that catoptron is installed.
3, a kind of Waterproof, moistureproof and dustproof full closed panoramic vision sensor according to claim 2 is characterized in that described catoptron is a hyperboloidal mirror, and minute surface is coated with reflectance coating.
4, a kind of Waterproof, moistureproof and dustproof full closed panoramic vision sensor according to claim 3 is characterized in that described support is made of two the same submounts, is provided with groove and bar hole in the middle of each submounts.
5, a kind of Waterproof, moistureproof and dustproof full closed panoramic vision sensor according to claim 4, it is characterized in that being provided with in the middle of the described base the fixedly pilot hole of resistive heater of 4 support bracket fastened heavy through holes and two, the surface is provided with the annular chassis groove of fixed cylinder, the bottom is provided with air intake valve and the valve of giving vent to anger, and sidepiece is equipped with the aviation plug-in unit.
6, a kind of Waterproof, moistureproof and dustproof full closed panoramic vision sensor according to claim 5 is characterized in that described cylindrical shell is the glass cylindrical shell of column type.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2007100718356A CN100570472C (en) | 2007-03-06 | 2007-03-06 | Waterproof, moistureproof and dustproof full closed panoramic vision sensor |
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CNB2007100718356A CN100570472C (en) | 2007-03-06 | 2007-03-06 | Waterproof, moistureproof and dustproof full closed panoramic vision sensor |
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CN101021672A true CN101021672A (en) | 2007-08-22 |
CN100570472C CN100570472C (en) | 2009-12-16 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103248806A (en) * | 2013-04-26 | 2013-08-14 | 黑龙江科技学院 | Device for single camera to achieve spatial 360 degree annular panoramic and local precise imaging |
CN103780810A (en) * | 2012-10-19 | 2014-05-07 | 技研Trastem株式会社 | Waterproof ceiling mounted surveillance sensor |
CN108900748A (en) * | 2018-07-05 | 2018-11-27 | 陈俊瑞 | A kind of periscopic panoramic picture imaging device and system |
-
2007
- 2007-03-06 CN CNB2007100718356A patent/CN100570472C/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103780810A (en) * | 2012-10-19 | 2014-05-07 | 技研Trastem株式会社 | Waterproof ceiling mounted surveillance sensor |
CN103780810B (en) * | 2012-10-19 | 2018-04-17 | 技研Trastem株式会社 | Ceiling mount type sensor |
CN103248806A (en) * | 2013-04-26 | 2013-08-14 | 黑龙江科技学院 | Device for single camera to achieve spatial 360 degree annular panoramic and local precise imaging |
CN108900748A (en) * | 2018-07-05 | 2018-11-27 | 陈俊瑞 | A kind of periscopic panoramic picture imaging device and system |
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CN100570472C (en) | 2009-12-16 |
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Granted publication date: 20091216 Termination date: 20120306 |